org.hibernate.validator.internal.cdi.ValidationExtension didn't implement the required interface in JBoss EAP

Issue

• Our web application test-app is failing to deploy with this exception below. Our application depends on our custom module examples.test.module shown below:

<module xmlns="urn:jboss:module:1.1" name="examples.test.module">
    <resources>
      <resource-root path="weld-servlet-2.3.1.Final.jar"></resource>
      <resource-root path="test-shared-classes.jar"></resource>
    </resources>
    <dependencies>
            <module name="javax.servlet.api"></module>
            <module name="org.jboss.as.web"></module>
            <module name="org.apache.commons.lang"></module>
            <module name="javax.api"></module>
            <module name="sun.jdk"></module>
            <module name="javaee.api"></module>
            <module name="io.undertow.servlet"></module>
            <module name="org.hibernate.validator" ></module>
    </dependencies>
</module>

ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 60) MSC000001: Failed to start service jboss.undertow.deployment.default-server.default-host."/test-app": org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host."/test-app": java.lang.RuntimeException: java.lang.RuntimeException: Service class org.hibernate.validator.internal.cdi.ValidationExtension didn't implement the required interface
    at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:85)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
    at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: Service class org.hibernate.validator.internal.cdi.ValidationExtension didn't implement the required interface
    at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:231)
    at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:100)
    at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:82)
    ... 6 more
Caused by: java.lang.RuntimeException: Service class org.hibernate.validator.internal.cdi.ValidationExtension didn't implement the required interface
    at org.jboss.weld.util.ServiceLoader.loadClass(ServiceLoader.java:230)
    at org.jboss.weld.util.ServiceLoader.loadService(ServiceLoader.java:210)
    at org.jboss.weld.util.ServiceLoader.loadServiceFile(ServiceLoader.java:182)
    at org.jboss.weld.util.ServiceLoader.reload(ServiceLoader.java:162)
    at org.jboss.weld.util.ServiceLoader.iterator(ServiceLoader.java:297)
    at com.google.common.collect.ImmutableCollection$Builder.addAll(ImmutableCollection.java:281)
    at com.google.common.collect.ImmutableCollection$ArrayBasedBuilder.addAll(ImmutableCollection.java:360)
    at com.google.common.collect.ImmutableSet$Builder.addAll(ImmutableSet.java:508)
    at org.jboss.weld.environment.servlet.WeldServletLifecycle.createDeployment(WeldServletLifecycle.java:282)
    at org.jboss.weld.environment.servlet.WeldServletLifecycle.initialize(WeldServletLifecycle.java:155)
    at org.jboss.weld.environment.servlet.EnhancedListener.onStartup(EnhancedListener.java:61)
    at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:184)
    ... 8 more